I can languish you can languish he can languish we can languish you can languish they can languish
V-ing form
I can be languishing you can be languishing he can be languishing we can be languishing you can be languishing they can be languishing
Perfect
I can have languished you can have languished he can have languished we can have languished you can have languished they can have languished
V-ing perfect
I can have been languishing you can have been languishing he can have been languishing we can have been languishing you can have been languishing they can have been languishing
Negation
Simple form
I cannot languish you cannot languish he cannot languish we cannot languish you cannot languish they cannot languish
V-ing form
I cannot be languishing you cannot be languishing he cannot be languishing we cannot be languishing you cannot be languishing they cannot be languishing
Perfect
I cannot have languished you cannot have languished he cannot have languished we cannot have languished you cannot have languished they cannot have languished
V-ing perfect
I cannot have been languishing you cannot have been languishing he cannot have been languishing we cannot have been languishing you cannot have been languishing they cannot have been languishing
Interrogative form
Simple form
can I languish? can you languish? can he languish? can we languish? can you languish? can they languish?
V-ing form
can I be languishing? can you be languishing? can he be languishing? can we be languishing? can you be languishing? can they be languishing?
Perfect
can I have languished? can you have languished? can he have languished? can we have languished? can you have languished? can they have languished?
V-ing perfect
can I have been languishing? can you have been languishing? can he have been languishing? can we have been languishing? can you have been languishing? can they have been languishing?
Interro-negative form
Simple form
can I not languish? can you not languish? can he not languish? can we not languish? can you not languish? can they not languish?
V-ing form
can I not be languishing? can you not be languishing? can he not be languishing? can we not be languishing? can you not be languishing? can they not be languishing?
Perfect
can I not have languished? can you not have languished? can he not have languished? can we not have languished? can you not have languished? can they not have languished?
V-ing perfect
can I not have been languishing? can you not have been languishing? can he not have been languishing? can we not have been languishing? can you not have been languishing? can they not have been languishing?